Method

1. Apply heat to saucepan (or roasting tray). Pour in the glass of red wine and reduce it by two thirds. Poor in your stock and reduce again by two thirds. The sauce will begin to thicken.
2. Add the tablespoon of gravy granules and remove from the heat, the rich gravy should now coat the back of a spoon.
3. For richness, vigorously stir the cold butter into the gravy until melted. Fold in the heaped teaspoon of TruffleHunter's Minced Black Truffle
4. Pour over everything.